My cousin wants to visit Canada again

My 22 years old cousin came to visit my parents and I from France in Canada and stayed for 2 weeks. She invited herself since she’s never been here before. We paid for everything, every activity (ice skating, animals, museum, etc.) and the groceries cost went up during her stay. I‘m the one who mostly paid for everything, including groceries since my parents don’t have a lot of money.

She wants to come back during summer. I really don’t feel like spending 2k again. it’s unfair since no one pays for my vacations either. Should I pay for everything again and just move on? If she asks to go see animals again and the ticket is 45$, do I tell her she needs to pay or do I pay it? Mind you, when we go out, I pay for my mom, brother, her and myself.

What’s worst is that I think she’s coming with her mom and brother. So it’s gonna be more expensive for me.

University in France is free, so she saves up most of her money. I’m going back to Uni in Canada and yall know it’s expensive. I need to save up for that.

What would you do if she came alone or with her family?